Yea, but the problem with having a patch is that some of us aren't
quite sure how to apply the patch.
Knowning how to apply patches is a good skill to learn.
but is there any plan to apply the patch permanently so that the
stock kernel used in the base package has support for sis900?
That you must ask the Debian developers, hopefully any floating
patches for all the various NIC drivers will be applied to the offical
kernel.
Happy hacking.